CN103072187A - Method for producing slab clay - Google Patents

Abstract

The invention discloses a method for producing slab clay. The method comprises the following steps of: 1, adding various types of mud into a ball mill according to a formula and ball milling for 10-12 hours with water until the fineness reaches 5-8% of a 250-mesh screen residue and the liquidity reaches 18-28 seconds; 2, filtering the ball milled slurry through a 20-mesh screen, removing iron through an automatic iron remover and filling slurry into a slurry tank; 3, using a plunger pump to pump the slurry from the slurry tank into an interval mud pressing machine under the pressure of 1.5-2.5MPa, and filter pressing the slurry into mud cakes with 20%-26% of water content; and 4, feeding the mud cakes and dry powder with the weight of 10-20% of the mud cakes into a mixer to be mixed, vacuum pugging for one time, feeding the pugged mud to a storage bin to be aged for over 24 hours, and thus obtaining the slab clay. The method cannot be influenced by weather and mud water content, so the production stability and normal operation are ensured; and in addition, by utilizing the method, the dust and environment pollution can also be greatly reduced, fuels are saved, and energy consumption is lowered.

Description

A kind of preparation method of the slab mud of making pottery

Technical field

The present invention relates to the to make pottery preparation method field of slab mud relates to a kind of wet-method extrusion dry hanging curtain wall pottery plate production in particular with the preparation method of base mud.

Background technology

At present, the preparation of base mud generally comprises dry method and beats powder and two kinds of methods of spray-drying in the existing pottery board production technology:

(1) dry method is beaten the powder method, be with various raw ore pugs through manually dry to moisture be 5-9%, break into fine powder with Raymond machine again, then add water mixing pugging mullering.This method not only needs large tracts of land to shine stock ground and storage warehouse, and lives at the mercy of the elements, and inefficiency more seriously, can produce a large amount of dust when beating powder, and contaminated environment has seriously been damaged the healthy of workman;

(2) spray drying process is that raw material is all added water for ball milling, then is spray dried to the powder that water content is 5-9%, makes the base mud that water content is 15-17% after adding the water mixing pugging of 6-12% again.Although spray drying process is not limited by pug moisture, dust is also less in the production process, needs to consume a large amount of fuel, and energy consumption is high, deficiency in economic performance.

In order to solve the deficiency of above-mentioned two kinds of techniques, the applicant has developed this case, and namely a kind of pug moisture that is not subjected to limits and weather effect, and the clay Preparation Method of pottery slab with environmental protection and energy-saving and cost-reducing effect.

Summary of the invention

The object of the present invention is to provide a kind of preparation method of the slab mud of making pottery, it is not subjected to the restriction of pug moisture and weather effect, and has environmental protection and energy-saving and cost-reducing effect.

In order to reach above-mentioned purpose, solution of the present invention is:

A kind of preparation method of the slab mud of making pottery wherein, may further comprise the steps:

1. various pugs are pressed formula rate and added in the ball milling, add water for ball milling 10-12 hour, make its fineness reach the remaining 5-8% of 10000-hole sieve, mobile 18-28 second;

2. the mud that ball milling is good is crossed 20 mesh sieves, carries out deironing by automatic de-ironing device, puts into mud pit;

3. with the pressure of 1.5-2.5MPa mud is squeezed into the clearance-type slip drying press with plunger displacement pump from stock tank, it is the mud cake of 20%-26% that filter pressing is become moisture content;

4. be that the dry powder of mud cake 10%-20% is sent in the mixer together and stirred with mud cake and weight, carry out vacuum pugging one time again, it is old more than 24 hours that the pug of practising is delivered to feed bin again, namely obtains the slab mud of making pottery.

The dry powder of described step in 4. is the powder behind the pottery plate spray drying of slip.

After adopting said structure, the present invention relates to a kind of preparation method of the slab mud of making pottery, it does not need manually to shine material when preparation pottery slab mud, so can not be subject to the impact of weather and pug moisture, can effectively ensure the stable and normal operation of producing; In addition, owing to only adopt the dry powder of 10%-20%, so can also greatly reduce dust and environmental pollution, fuel savings reduces energy consumption.

The specific embodiment

In order further to explain technical scheme of the present invention, the present invention will be described in detail below by specific embodiment.

The preparation method of a kind of slab mud of making pottery that the present invention relates to may further comprise the steps:

1. various pugs are pressed formula rate and added in the ball milling, add water for ball milling 10-12 hour, make its fineness reach the remaining 5-8% of 10000-hole sieve, mobile 18-28 second; Adjust accordingly according to the difference of ceramic body for pug and prescription thereof; By so that mobile 18-28 second, the dual assurance that so has blowing and avoid precipitating is specifically measured to be coated with-4 type viscosimeters; Particularly, if when flowability surpassed 28 seconds, slip fluidity was poor, the blowing difficulty, flow resistance is large in pipeline; If be lower than 18 seconds, then mud is excessively rare, the as easy as rolling off a log precipitation that produces in pipeline.

2. the mud that ball milling is good is crossed 20 mesh sieves, carries out deironing by automatic de-ironing device, puts into mud pit; So can remove bulk impurity and irony in the mud, speed is slow when passing through screen cloth less than 20 order mud, the difficulty of sieving; Greater than 20 orders will make larger impurity particle be able to by, affect product appearance; By removing metal simple-substance iron, prevent that it from forming the defectives such as spot and fusion hole when high temperature burns till in addition.

3. with the pressure of 1.5-2.5MPa mud is squeezed into the clearance-type slip drying press with plunger displacement pump from stock tank, it is the mud cake of 20%-26% that filter pressing is become moisture content; The present invention is by the pressure selection of 1.5-2.5MPa, and it has best characteristic at the rate of filtration, squeezing time and protection filtering equipment, and particularly, the rate of filtration is slow if pressure is lower than 1.5Mpa mud moisture, and the squeezing time is long; Cause easily filtering equipment to damage if be higher than 2.5Mpa; Adopt this clearance-type slip drying press so can reach the pressure of maximum 2.5Mpa, could as much as possible mud be drained, and have low-cost characteristics.

4. be that the dry powder of mud cake 10%-20% is sent in the mixer together and stirred with mud cake and weight, carry out vacuum pugging one time again, it is old more than 24 hours that the pug of practising is delivered to feed bin again, namely obtains the slab mud of making pottery.Particularly, this dry powder can be the powder behind the pottery plate spray drying of slip, can certainly be the additive method processing powder that plate produces that is applicable to make pottery.

Like this, the present invention does not need manually to shine material when preparation pottery slab mud, so can not be subject to the impact of weather and pug moisture, can effectively ensure the stable and normal operation of producing; In addition, owing to only adopt the dry powder of 10%-20%, so can also greatly reduce dust and environmental pollution, fuel savings reduces energy consumption.

Above-described embodiment and non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present invention to its suitable variation or modification of doing.

Claims (2)

1. the preparation method of slab mud that makes pottery is characterized in that, may further comprise the steps:

1. various pugs are pressed formula rate and added in the ball milling, add water for ball milling 10-12 hour, make its fineness reach the remaining 5-8% of 10000-hole sieve, mobile 18-28 second;

2. the mud that ball milling is good is crossed 20 mesh sieves, carries out deironing by automatic de-ironing device, puts into mud pit;

3. with the pressure of 1.5-2.5MPa mud is squeezed into the clearance-type slip drying press with plunger displacement pump from stock tank, it is the mud cake of 20%-26% that filter pressing is become moisture content;

4. be that the dry powder of mud cake 10%-20% is sent in the mixer together and stirred with mud cake and weight, carry out vacuum pugging one time again, it is old more than 24 hours that the pug of practising is delivered to feed bin again, namely obtains the slab mud of making pottery.

2. the preparation method of a kind of slab mud of making pottery as claimed in claim 1 is characterized in that, the dry powder of described step in 4. is the powder behind the pottery plate spray drying of slip.